Home / 2,165.27-3,247.94-830.59

Finding the Fourth Proportional to 2,165.27, 3,247.94 and 830.59

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Solution

The fourth proportional to 2,165.27, 3,247.94 and 830.59 is: 1,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.27 : 3,247.94 = 830.59 : x
  2. Step 2: Convert to fraction form
    2,165.27/3,247.94 = 830.59/x
  3. Step 3: Cross multiply
    2,165.27x = 3,247.94 × 830.59
  4. Step 4: Simplify right side
    2,165.27x = 2,697,700.44
  5. Step 5: Solve for x
    x = 2,697,700.44/2,165.27
  6. Step 6: Final answer
    x = 1,245.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.